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Core i7-7820HQ vs i5-7500


Description
Both models i7-7820HQ and i5-7500 are based on Kaby Lake architecture.

The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.

Using the multithread performance as a reference, the i7-7820HQ gets a score of 196.6 k points while the i5-7500 gets 191.7 k points.

Summarizing, the i7-7820HQ is 1 times faster than the i5-7500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906e9
Core
Kaby Lake-H
Kaby Lake-S
Architecture
Base frecuency
2.9 GHz
3.4 GHz
Boost frecuency
3.9 GHz
3.8 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
4/8
4/4
TDP
45 W
65 W
Cache L1 (d+i)
4x32+x4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
6144 kB
Date
January 2017
September 2016
Mean monothread perf.
55.85k points
61.51k points
Mean multithread perf.
196.55k points
191.71k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-7820HQ
i5-7500
Test#1 (Integers)
23.23k
25.59k (x1.1)
Test#2 (FP)
20.13k
22.57k (x1.12)
Test#3 (Generic, ZIP)
4.57k
5.27k (x1.15)
Test#1 (Memory)
7.92k
8.08k (x1.02)
TOTAL
55.85k
61.51k (x1.1)

Multithread

i7-7820HQ

i5-7500
Test#1 (Integers)
85.54k
88.3k (x1.03)
Test#2 (FP)
87.07k
78.59k (x0.9)
Test#3 (Generic, ZIP)
20.37k
19.72k (x0.97)
Test#1 (Memory)
3.57k
5.1k (x1.43)
TOTAL
196.55k
191.71k (x0.98)

Performance/W
i7-7820HQ
i5-7500
Test#1 (Integers)
1901 points/W
1358 points/W
Test#2 (FP)
1935 points/W
1209 points/W
Test#3 (Generic, ZIP)
453 points/W
303 points/W
Test#1 (Memory)
79 points/W
79 points/W
TOTAL
4368 points/W
2949 points/W

Performance/GHz
i7-7820HQ
i5-7500
Test#1 (Integers)
5956 points/GHz
6734 points/GHz
Test#2 (FP)
5163 points/GHz
5939 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
1387 points/GHz
Test#1 (Memory)
2030 points/GHz
2125 points/GHz
TOTAL
14321 points/GHz
16186 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4